Gerrit Code Review - The Introduction
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Gerrit is a Git server that provides code review functionality. It includes an HTTP server and SSH server. To use Gerrit, a Gerrit server is needed along with Git configured with the proper "refspec" and commit message hook. The "refspec" specifies how to push changes to Gerrit for review rather than directly merging to the master branch. The commit hook adds metadata to commits. Example commands are provided to initialize a Git repository, add a file, commit a change, and push the change to Gerrit to create a review request.
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Gerrit Code Review - The Introduction
- 1. Introduction to Gerrit Dariusz Łuksza [email protected] @dluksza
- 2. Git?! Copyright © 2012 Dariusz Łuksza
- 3. What is Gerrit? Git server Gerrit HTTP serverSSH server Copyright © 2012 Dariusz Łuksza
- 4. Why use code view? ● Early catch of common errors: – NullPoinerException – Code duplication – Deprecated code use – Typos ● Code design review ● Improve team knowledge about project ● Can be used as knowledge base Copyright © 2012 Dariusz Łuksza
- 5. Who uses Gerrit? Copyright © 2012 Dariusz Łuksza
- 6. Gerrit @ Eclipse Foundation Copyright © 2012 Dariusz Łuksza
- 7. What is needed to use it? ● Gerrit server ● git – with additional configuration – proper refspec – commit message hook ● or EGit Copyright © 2012 Dariusz Łuksza
- 8. What is “refspec”? $ git push <repo_name> <src_branch>:<dst_branch> example: ● $ git push origin fix-npe:master ● $ git push origin fix-npe:refs/for/master or configure this as default push action for repository: $ git configure remote.origin.push HEAD:refs/for/master Or use EGit and “Push to Gerrit” action. Copyright © 2012 Dariusz Łuksza
- 9. What is “commit hook”? ● Script executed by git after commit operation ● Gerrit commit hook adds Change-Id meta data ● It is project independent so after fetching from server for one project you can copy it locally ● Or use EGit and don't bother about hooks. Copyright © 2012 Dariusz Łuksza
- 10. Lets create first review request $ git init $ scp -p -P 29418 <host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit 0a60797abd716298c6f6f8eb641451ae507eb9bf Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I871f6b4c500c96f4f7a91abf236f76b00d9057ca $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 11. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit 0a60797abd716298c6f6f8eb641451ae507eb9bf Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I871f6b4c500c96f4f7a91abf236f76b00d9057ca $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 12. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit 0a60797abd716298c6f6f8eb641451ae507eb9bf Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I871f6b4c500c96f4f7a91abf236f76b00d9057ca $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 13. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit 0a60797abd716298c6f6f8eb641451ae507eb9bf Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I871f6b4c500c96f4f7a91abf236f76b00d9057ca $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 14. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit 0a60797abd716298c6f6f8eb641451ae507eb9bf Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I871f6b4c500c96f4f7a91abf236f76b00d9057ca $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 15. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 16. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 17. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 18. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 19. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push origin HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 20. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push ssh://<login>@<host>:29418/<proj> HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 21. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push ssh://<login>@<host>:29418/<proj> HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 22. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push ssh://<login>@<host>:29418/<proj> HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 23. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push ssh://<login>@<host>:29418/<proj> HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 24. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push ssh://<login>@<host>:29418/<proj> HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 25. Lets create first review request $ git init $ scp -p -P 29418 <login>@<host>:hooks/commit-msg .git/hooks/ $ echo 'first review' > readme.txt $ git add readme.txt $ git commit -m 'my first commit' $ git log commit e6762c9a59c1bda7118633e4c2ddabf4ecca2152 Author: Dariusz Luksza <[email protected]> Date: Tue Nov 20 11:20:13 2012 +0100 my first commit Change-Id: I5e9f2d410fdf37d2e20bedc162b2fb9565988a56 $ git push ssh://<login>@<host>:29418/<proj> HEAD:refs/for/master Copyright © 2012 Dariusz Łuksza
- 26. Review change in Web UI m o d e iv e L Copyright © 2012 Dariusz Łuksza
- 27. Add inline comments mo d e ive L Copyright © 2012 Dariusz Łuksza
- 28. Amend change mo d e ive L Copyright © 2012 Dariusz Łuksza
- 29. Vote on change mo d e ive L Copyright © 2012 Dariusz Łuksza
- 30. Submit change mo d e ive L Copyright © 2012 Dariusz Łuksza
- 31. Gerrit ACL ● Read ● Push ● Push merge commit ● Push annotated tag ● Label code review (-2 to +2) ● Label verified (-1 to +1) ● Create reference (aka create branch) ● Abandon ● Edit topic ● Forge author identity ● Forge committer identity ● Forge server identity ● Rebase ● Remove reviewer Copyright © 2012 Dariusz Łuksza
- 32. Gerrit Plugability ● Plugins – Plugins – Extensions ● Prolog rules for change validation Copyright © 2012 Dariusz Łuksza
- 33. Review from Eclipse Copyright © 2012 Dariusz Łuksza
- 34. Introduction to Gerrit Dariusz Łuksza [email protected] @dluksza Useful links: ● Git – http://git-scm.com/ ● EGit – http://eclipse.org/egit/ ● Gerrit – http://gerrit.googlecode.com/ ● Mylyn reviews – http://eclipse.org/reviews/gerrit/